<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>

    <script>
        // var massagr = "Hello,World!"
        // let age = 25
        // const PI = 3.1415926535
        // document.write(massagr, age, PI)


        // var name = "Kimi"
        // function greet() {
        //     var greeting = "Hello"
        //     console.log(greeting + "," + name)
        // }
        // greet()


        // let firstName="Kimi";
        // const lastName="AI";
        // {
        //     let age=1
        //     console.log(firstName+" "+lastName+" is "+age+' yearold.')
        // }


        // let age3 = 18
        // age3 = 19
        // let age4 = 19
        // console.log(age4)
        // let age5 = 18, uname = '迪丽热巴'
        // console.log(age5,uname)
        // let age = 19
        // let uname = '迪丽热巴'
        // console.log(age, uname)


        // prompt('请输入姓名')
        // let uname=prompt('请输入姓名')
        // document.write(uname)

        
    </script>
</head>

<body>

</body>

</html>